Publication Date:
2020-06-08
Description:
Strontium molybdate (SrMoO3) thin films are grown epitaxially by pulsed laser deposition onto gadolinium scandate (GdScO3) substrates and characterized in the terahertz (THz) and visible part of the electromagnetic spectrum. X-ray diffraction measurements prove a high crystallinity and phase-pure growth of the thin films. The high-quality SrMoO3 thin films feature a room temperature DC conductivity of around $3{frac {1}{mu {Omega } m}}$ 3 1 μ Ω m . SrMoO3 is characterized in the THz frequency range by time domain spectroscopy. The resulting AC conductivity is in excellent agreement with the DC value. A Lorentz-Drude oscillator approach models the THz and visible conductivity of SrMoO3 very well. We compare the results of the SrMoO3 thin films to a standard, sputtered gold film, with a resulting THz conductivity of $8{frac {1}{mu {Omega } m}}$ 8 1 μ Ω m . The comparison demonstrates that oxide thin film–based devices can play an important role in future THz technology.
Print ISSN:
1866-6892
Electronic ISSN:
1866-6906
Topics:
Physics
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